That doesn't seem like a problem unless you're trying to rely on their population figures or something
It's a pretty great example of the wisdom of "doing one thing well." This site should just have a Wikipedia link to each country.
Or scrape/API, at most.
It still has the pre-1979 revolution bank notes for Iran. Not only has it not been in circulation or considered legal tender for decades, but also because of the inflation, the value of the note depicted is laughably low—like less than half a cent.
0 Billion Dollar Bills would be useful in the Trump era.